23040022420 has 12 divisors (see below), whose sum is σ = 48384047124. Its totient is φ = 9216008960.

The previous prime is 23040022367. The next prime is 23040022469. The reversal of 23040022420 is 2422004032.

It can be written as a sum of positive squares in 2 ways, for example, as 10108693764 + 12931328656 = 100542^2 + 113716^2 .

It is a super-2 number, since 2×23040022420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 576000541 + ... + 576000580.

It is an arithmetic number, because the mean of its divisors is an integer number (4032003927).

Almost surely, 2^23040022420 is an apocalyptic number.

23040022420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23040022420 is an abundant number, since it is smaller than the sum of its proper divisors (25344024704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23040022420 is a wasteful number, since it uses less digits than its factorization.

23040022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152001130 (or 1152001128 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 19.

Adding to 23040022420 its reverse (2422004032), we get a palindrome (25462026452).

The spelling of 23040022420 in words is "twenty-three billion, forty million, twenty-two thousand, four hundred twenty".